Oviposition strategy of the green lacewing Chrysoperla rufilabris (Neuroptera: Chrysopidae) in response to extraguild prey availability
Oviposition strategy of the green lacewing Chrysoperla rufilabris (Neuroptera: Chrysopidae) in response to extraguild prey availability
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DOI：
10.14411/eje.2000.078
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发表时间：
2000-01-01
影响因子：
1.3
通讯作者：
Coderre, D
中科院分区：
文献类型：
--
作者：
Fréchette, B;Coderre, D
研究了绿草蛉（Chrysoperla rufilabris, Burmeister）根据产卵地点的猎物可得性改变产卵策略的能力。将怀孕的雌性放置在有蚜虫和没有蚜虫的环境中。比较了繁殖力、育性、分散度和孵化同步性。结果表明，卵的孵化同步性有统计学差异。然而，在不育卵比例和卵分散方面没有观察到统计学差异。我们认为，在食物匮乏的情况下，红毛棘虫可以改变卵的孵化同步，从而有利于新孵化的幼虫吞食卵，从而提高其整体繁殖成功率。
The capacity of the green lacewing Chrysoperla rufilabris (Burmeister) to modify its oviposition strategy in response to extraguild prey availability in an oviposition site was studied. Gravid females were placed in presence and absence of aphids. Fecundity, fertility, dispersion and hatching synchrony were compared. Results indicate a statistical difference in the hatching synchrony of eggs. However, no statistical differences were observed in the proportion of infertile eggs and in egg dispersion. We suggest that C. rufilabris can alter hatching synchrony of eggs in condition of food scarcity in order to favour intra-clutch egg cannibalism by newly hatched larvae and thus increase its overall reproductive success.